/* roulang page: index */
:root {
            --color-primary: #FF3B1F;
            --color-primary-dark: #D93016;
            --color-dark: #1C1E24;
            --color-accent: #D4A843;
            --color-bg-light: #F7F5F0;
            --color-text: #1E1E1E;
            --color-muted: #5C5F66;
            --color-white: #FFFFFF;
            --color-success: #0FA87A;
            --color-border-light: #E8E5DF;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-card: 0 2px 16px rgba(28, 30, 36, 0.07);
            --shadow-card-hover: 0 8px 28px rgba(28, 30, 36, 0.13);
            --shadow-nav: 0 2px 20px rgba(28, 30, 36, 0.08);
            --transition: 0.25s ease;
            --font-title: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --container-max: 1200px;
            --section-gap: 140px;
            --section-gap-mobile: 80px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 80px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            font-weight: 400;
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text);
            background-color: var(--color-white);
            min-height: 100vh;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition), background-color var(--transition), transform var(--transition);
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition);
        }

        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== NAVIGATION ========== */
        .nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 68px;
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            transition: box-shadow var(--transition);
            display: flex;
            align-items: center;
        }

        .nav.scrolled {
            box-shadow: var(--shadow-nav);
        }

        .nav .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-title);
            font-weight: 800;
            font-size: 22px;
            color: var(--color-dark);
            flex-shrink: 0;
            letter-spacing: 0.5px;
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            flex-shrink: 0;
        }

        .nav-logo .logo-icon svg {
            width: 100%;
            height: 100%;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .nav-links a {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-muted);
            padding: 6px 0;
            position: relative;
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-primary);
            border-radius: 1px;
            transition: width var(--transition);
        }

        .nav-links a:hover,
        .nav-links a.active {
            color: var(--color-primary);
        }

        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--color-primary);
            color: var(--color-white);
            font-weight: 600;
            font-size: 14px;
            padding: 10px 22px;
            border-radius: var(--radius-md);
            white-space: nowrap;
            letter-spacing: 0.4px;
            flex-shrink: 0;
        }

        .nav-cta:hover {
            background: var(--color-primary-dark);
            transform: scale(1.03);
        }

        .nav-hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 8px 4px;
            z-index: 1001;
            background: none;
            border: none;
        }

        .nav-hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: all 0.3s ease;
            transform-origin: center;
        }

        .nav-hamburger.active span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }

        .nav-hamburger.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }

        .nav-hamburger.active span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        .nav-drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(28, 30, 36, 0.55);
            z-index: 998;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.35s ease;
        }

        .nav-drawer-overlay.active {
            opacity: 1;
            pointer-events: all;
        }

        .nav-drawer {
            position: fixed;
            top: 0;
            right: 0;
            width: 280px;
            height: 100vh;
            background: var(--color-white);
            z-index: 999;
            padding: 90px 28px 40px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            transform: translateX(100%);
            transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: -4px 0 30px rgba(28, 30, 36, 0.12);
        }

        .nav-drawer.active {
            transform: translateX(0);
        }

        .nav-drawer a {
            display: block;
            font-size: 16px;
            font-weight: 500;
            color: var(--color-dark);
            padding: 12px 16px;
            border-radius: var(--radius-md);
            transition: all var(--transition);
            letter-spacing: 0.3px;
        }

        .nav-drawer a:hover,
        .nav-drawer a.active {
            color: var(--color-primary);
            background: rgba(255, 59, 31, 0.06);
        }

        .nav-drawer .drawer-cta {
            margin-top: 16px;
            background: var(--color-primary);
            color: var(--color-white);
            text-align: center;
            font-weight: 600;
            border-radius: var(--radius-md);
            padding: 14px 20px;
        }

        .nav-drawer .drawer-cta:hover {
            background: var(--color-primary-dark);
            color: var(--color-white);
        }

        /* ========== HERO ========== */
        .hero {
            background: var(--color-dark);
            min-height: 85vh;
            display: flex;
            align-items: center;
            padding-top: 68px;
            position: relative;
            overflow: hidden;
        }

        .hero-bg-texture {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.07;
            pointer-events: none;
            z-index: 1;
        }

        .hero .container {
            display: flex;
            align-items: center;
            gap: 60px;
            position: relative;
            z-index: 2;
            padding-top: 40px;
            padding-bottom: 60px;
        }

        .hero-content {
            flex: 0 0 58%;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(212, 168, 67, 0.15);
            border: 1px solid rgba(212, 168, 67, 0.35);
            color: var(--color-accent);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .hero-badge-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-accent);
            animation: pulse-dot 1.8s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.4;
                transform: scale(1.6);
            }
        }

        .hero h1 {
            font-family: var(--font-title);
            font-weight: 800;
            font-size: 56px;
            line-height: 1.15;
            color: var(--color-white);
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

        .hero h1 .highlight {
            color: var(--color-primary);
            position: relative;
        }

        .hero-subtitle {
            font-size: 18px;
            line-height: 1.7;
            color: #b0b3ba;
            margin-bottom: 32px;
            max-width: 480px;
        }

        .hero-cta-group {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--color-primary);
            color: var(--color-white);
            font-weight: 600;
            font-size: 15px;
            padding: 14px 28px;
            border-radius: var(--radius-md);
            letter-spacing: 0.4px;
            white-space: nowrap;
            border: 2px solid var(--color-primary);
            transition: all var(--transition);
        }

        .btn-primary:hover {
            background: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
            transform: scale(1.03);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--color-white);
            font-weight: 600;
            font-size: 15px;
            padding: 14px 28px;
            border-radius: var(--radius-md);
            letter-spacing: 0.4px;
            white-space: nowrap;
            border: 2px solid rgba(255, 255, 255, 0.35);
            transition: all var(--transition);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.6);
            transform: scale(1.03);
        }

        .hero-trust-strip {
            display: flex;
            align-items: center;
            gap: 28px;
            flex-wrap: wrap;
        }

        .hero-trust-strip span {
            font-size: 13px;
            color: #7a7d85;
            letter-spacing: 0.3px;
            filter: grayscale(1);
            opacity: 0.7;
            transition: all var(--transition);
            cursor: default;
            font-weight: 500;
        }

        .hero-trust-strip span:hover {
            filter: grayscale(0);
            opacity: 1;
            color: #c0c3c9;
        }

        .hero-visual {
            flex: 0 0 38%;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        .hero-mockup {
            width: 100%;
            max-width: 300px;
            border-radius: 28px;
            overflow: hidden;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 0 3px rgba(255, 255, 255, 0.08);
            transform: rotate(-2deg);
            transition: transform var(--transition);
            position: relative;
        }

        .hero-mockup:hover {
            transform: rotate(0deg) scale(1.02);
        }

        .hero-mockup img {
            width: 100%;
            height: auto;
            display: block;
            object-fit: cover;
            aspect-ratio: 9/16;
        }

        .hero-glow {
            position: absolute;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 59, 31, 0.25) 0%, transparent 70%);
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            pointer-events: none;
            z-index: 0;
            animation: glow-pulse 3s ease-in-out infinite;
        }

        @keyframes glow-pulse {
            0%,
            100% {
                transform: translate(-50%, -50%) scale(1);
                opacity: 0.6;
            }
            50% {
                transform: translate(-50%, -50%) scale(1.4);
                opacity: 0.3;
            }
        }

        /* ========== SECTION COMMON ========== */
        .section {
            padding: var(--section-gap) 0;
        }

        .section-dark {
            background: var(--color-dark);
            color: var(--color-white);
        }

        .section-light {
            background: var(--color-bg-light);
        }

        .section-white {
            background: var(--color-white);
        }

        .section-title {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 40px;
            line-height: 1.25;
            text-align: center;
            margin-bottom: 14px;
            letter-spacing: 0.4px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--color-muted);
            text-align: center;
            max-width: 560px;
            margin: 0 auto 56px;
            line-height: 1.6;
        }

        .section-dark .section-title {
            color: var(--color-white);
        }
        .section-dark .section-subtitle {
            color: #a8abb3;
        }

        /* ========== ADVANTAGES ========== */
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .advantage-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .advantage-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 0 0 3px 3px;
            opacity: 0;
            transition: opacity var(--transition);
        }

        .advantage-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .advantage-card:hover::before {
            opacity: 1;
        }

        .advantage-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform var(--transition);
        }

        .advantage-card:hover .advantage-icon {
            transform: scale(1.08);
        }

        .advantage-icon svg {
            width: 100%;
            height: 100%;
        }

        .advantage-card h3 {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 20px;
            line-height: 1.35;
            margin-bottom: 10px;
            color: var(--color-dark);
        }

        .advantage-card p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--color-muted);
        }

        /* ========== FEATURES ========== */
        .feature-row {
            display: flex;
            align-items: center;
            gap: 60px;
            padding: 50px 0;
        }

        .feature-row.reverse {
            flex-direction: row-reverse;
        }

        .feature-text {
            flex: 1;
        }

        .feature-text h2 {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 34px;
            line-height: 1.25;
            margin-bottom: 16px;
            color: var(--color-dark);
            letter-spacing: 0.3px;
        }

        .section-dark .feature-text h2 {
            color: var(--color-white);
        }

        .feature-divider {
            width: 40px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 2px;
            margin-bottom: 20px;
        }

        .feature-text p {
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-muted);
            margin-bottom: 16px;
        }

        .section-dark .feature-text p {
            color: #b0b3ba;
        }

        .feature-list {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .feature-list li {
            padding-left: 22px;
            position: relative;
            font-size: 15px;
            color: var(--color-muted);
            line-height: 1.6;
        }

        .section-dark .feature-list li {
            color: #c5c8cf;
        }

        .feature-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 9px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-primary);
        }

        .feature-image {
            flex: 1;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: 0 4px 24px rgba(28, 30, 36, 0.1);
            border: 1px solid rgba(0, 0, 0, 0.06);
        }

        .section-dark .feature-image {
            border-color: rgba(255, 255, 255, 0.1);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
        }

        .feature-image img {
            width: 100%;
            height: auto;
            display: block;
            object-fit: cover;
            aspect-ratio: 16/10;
        }

        /* ========== STATS ========== */
        .stats-row {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0;
            flex-wrap: wrap;
        }

        .stat-item {
            flex: 1;
            min-width: 180px;
            text-align: center;
            padding: 20px 30px;
            position: relative;
        }

        .stat-item+.stat-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 20%;
            height: 60%;
            width: 1px;
            background: rgba(255, 255, 255, 0.2);
        }

        .stat-number {
            font-family: var(--font-title);
            font-weight: 800;
            font-size: 48px;
            line-height: 1.1;
            color: var(--color-accent);
            letter-spacing: 1px;
        }

        .stat-unit {
            font-size: 22px;
            font-weight: 600;
            color: var(--color-accent);
        }

        .stat-label {
            font-size: 14px;
            color: #a8abb3;
            margin-top: 6px;
            letter-spacing: 0.3px;
        }

        /* ========== DOWNLOAD ========== */
        .download-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .download-card {
            background: var(--color-white);
            border-radius: var(--radius-xl);
            padding: 36px 24px;
            text-align: center;
            border: 2px solid #e0ded8;
            transition: all var(--transition);
            cursor: default;
            position: relative;
        }

        .download-card.featured {
            border-color: var(--color-primary);
            box-shadow: 0 4px 20px rgba(255, 59, 31, 0.1);
        }

        .download-card:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .download-card.featured .featured-badge {
            position: absolute;
            top: -13px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--color-primary);
            color: var(--color-white);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 16px;
            border-radius: 12px;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .download-platform-icon {
            width: 48px;
            height: 48px;
            margin: 0 auto 14px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .download-card h3 {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 20px;
            margin-bottom: 4px;
            color: var(--color-dark);
        }

        .download-version {
            font-size: 13px;
            color: var(--color-muted);
            margin-bottom: 18px;
        }

        .download-qr {
            width: 140px;
            height: 140px;
            margin: 0 auto 18px;
            background: #f5f3ef;
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px dashed #d5d2cc;
            position: relative;
            overflow: hidden;
        }

        .download-qr-inner {
            display: grid;
            grid-template-columns: repeat(5, 14px);
            grid-template-rows: repeat(5, 14px);
            gap: 3px;
            opacity: 0.5;
        }

        .download-qr-inner span {
            display: block;
            width: 14px;
            height: 14px;
            background: var(--color-dark);
            border-radius: 2px;
        }

        .download-qr-inner span.empty {
            background: transparent;
        }

        .btn-download {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            background: var(--color-primary);
            color: var(--color-white);
            font-weight: 600;
            font-size: 14px;
            padding: 12px 24px;
            border-radius: var(--radius-md);
            letter-spacing: 0.3px;
            transition: all var(--transition);
            width: 100%;
            max-width: 200px;
        }

        .btn-download:hover {
            background: var(--color-primary-dark);
            transform: scale(1.03);
        }

        .download-card.featured .btn-download {
            background: var(--color-primary);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .faq-item {
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.08);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(255, 255, 255, 0.18);
            background: rgba(255, 255, 255, 0.07);
        }

        .faq-item summary {
            font-family: var(--font-title);
            font-weight: 600;
            font-size: 17px;
            line-height: 1.5;
            color: var(--color-white);
            padding: 20px 24px;
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            user-select: none;
            transition: color var(--transition);
        }

        .faq-item summary:hover {
            color: var(--color-primary);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-icon {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
            position: relative;
            transition: transform 0.3s ease;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .faq-icon::before,
        .faq-icon::after {
            content: '';
            position: absolute;
            background: var(--color-primary);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .faq-icon::before {
            width: 14px;
            height: 2px;
        }

        .faq-icon::after {
            width: 2px;
            height: 14px;
        }

        .faq-item[open] .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 24px 20px;
            font-size: 15px;
            line-height: 1.75;
            color: #b0b3ba;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 16px;
            margin: 0 24px;
            padding-left: 0;
            padding-right: 0;
        }

        /* ========== CTA BANNER ========== */
        .cta-banner {
            background: var(--color-primary);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.08;
            pointer-events: none;
        }

        .cta-banner .container {
            position: relative;
            z-index: 2;
        }

        .cta-banner h2 {
            font-family: var(--font-title);
            font-weight: 800;
            font-size: 42px;
            line-height: 1.2;
            color: var(--color-white);
            margin-bottom: 14px;
            letter-spacing: 0.4px;
        }

        .cta-banner .cta-sub {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.78);
            margin-bottom: 32px;
            line-height: 1.6;
        }

        .btn-cta-reverse {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--color-white);
            color: var(--color-primary);
            font-weight: 700;
            font-size: 16px;
            padding: 16px 36px;
            border-radius: var(--radius-md);
            letter-spacing: 0.4px;
            transition: all var(--transition);
            border: 2px solid var(--color-white);
        }

        .btn-cta-reverse:hover {
            background: #fff5f3;
            transform: scale(1.04);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.18);
        }

        .cta-compat {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 20px;
            letter-spacing: 0.3px;
        }

        /* ========== FOOTER ========== */
        .footer {
            background: var(--color-dark);
            color: #b0b3ba;
            padding: 60px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 15px;
            color: var(--color-white);
            margin-bottom: 16px;
            letter-spacing: 0.4px;
        }

        .footer-col p {
            font-size: 14px;
            line-height: 1.7;
            color: #8b8e96;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: #8b8e96;
            transition: color var(--transition);
            letter-spacing: 0.2px;
        }

        .footer-col ul li a:hover {
            color: var(--color-primary);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: #6e7178;
        }

        .footer-bottom a {
            color: #8b8e96;
        }
        .footer-bottom a:hover {
            color: var(--color-primary);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1280px) {
            .hero h1 {
                font-size: 46px;
            }
            .hero .container {
                gap: 40px;
            }
            .section-title {
                font-size: 34px;
            }
            .feature-text h2 {
                font-size: 28px;
            }
        }

        @media (max-width: 1024px) {
            .advantages-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .download-cards {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
            .feature-row {
                gap: 36px;
            }
            .feature-text h2 {
                font-size: 26px;
            }
            .hero h1 {
                font-size: 38px;
            }
            .hero .container {
                gap: 30px;
            }
            .hero-visual {
                flex: 0 0 42%;
            }
            .hero-content {
                flex: 0 0 54%;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .stat-item+.stat-item::before {
                display: none;
            }
            .stats-row {
                gap: 0;
            }
            .stat-item {
                flex: 0 0 50%;
                min-width: 140px;
                padding: 16px 16px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-hamburger {
                display: flex;
            }
            .hero {
                min-height: auto;
                padding-top: 80px;
                padding-bottom: 40px;
            }
            .hero .container {
                flex-direction: column;
                text-align: center;
                gap: 36px;
                padding-top: 20px;
                padding-bottom: 30px;
            }
            .hero-content {
                flex: 1;
                order: 1;
            }
            .hero-visual {
                flex: 1;
                order: 2;
                max-width: 220px;
                margin: 0 auto;
            }
            .hero h1 {
                font-size: 32px;
            }
            .hero-subtitle {
                font-size: 15px;
                margin: 0 auto 24px;
                max-width: 100%;
            }
            .hero-cta-group {
                justify-content: center;
            }
            .hero-trust-strip {
                justify-content: center;
                gap: 16px;
            }
            .hero-mockup {
                max-width: 200px;
                border-radius: 20px;
            }
            .hero-glow {
                width: 140px;
                height: 140px;
            }
            .section {
                padding: var(--section-gap-mobile) 0;
            }
            .section-title {
                font-size: 26px;
            }
            .section-subtitle {
                font-size: 14px;
                margin-bottom: 36px;
            }
            .advantages-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .advantage-card {
                padding: 24px 20px;
            }
            .feature-row,
            .feature-row.reverse {
                flex-direction: column;
                gap: 28px;
                padding: 24px 0;
            }
            .feature-text h2 {
                font-size: 24px;
                text-align: center;
            }
            .feature-divider {
                margin: 0 auto 16px;
            }
            .feature-text p {
                text-align: center;
            }
            .feature-list li {
                text-align: left;
            }
            .feature-image {
                order: -1;
                max-width: 100%;
            }
            .download-cards {
                grid-template-columns: 1fr;
                gap: 20px;
                max-width: 360px;
                margin: 0 auto;
            }
            .stats-row {
                gap: 0;
            }
            .stat-item {
                flex: 0 0 50%;
                min-width: 130px;
                padding: 14px 10px;
            }
            .stat-number {
                font-size: 34px;
            }
            .stat-unit {
                font-size: 18px;
            }
            .faq-item summary {
                font-size: 15px;
                padding: 16px 18px;
            }
            .faq-answer {
                font-size: 14px;
                padding: 0 18px 16px;
                margin: 0 18px;
                padding-left: 0;
                padding-right: 0;
            }
            .cta-banner h2 {
                font-size: 28px;
            }
            .cta-banner .cta-sub {
                font-size: 15px;
            }
            .btn-cta-reverse {
                font-size: 15px;
                padding: 14px 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .btn-primary,
            .btn-outline {
                font-size: 14px;
                padding: 12px 20px;
            }
            .nav-drawer {
                width: 260px;
                padding: 80px 20px 30px;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 26px;
            }
            .hero-subtitle {
                font-size: 14px;
            }
            .hero-cta-group {
                flex-direction: column;
                align-items: center;
                gap: 10px;
            }
            .hero-cta-group .btn-primary,
            .hero-cta-group .btn-outline {
                width: 100%;
                max-width: 280px;
            }
            .hero-trust-strip {
                gap: 10px;
            }
            .hero-trust-strip span {
                font-size: 11px;
            }
            .section-title {
                font-size: 22px;
            }
            .stat-number {
                font-size: 28px;
            }
            .stat-unit {
                font-size: 16px;
            }
            .stat-label {
                font-size: 12px;
            }
            .cta-banner h2 {
                font-size: 24px;
            }
            .feature-text h2 {
                font-size: 20px;
            }
            .download-card {
                padding: 24px 16px;
            }
            .download-qr {
                width: 110px;
                height: 110px;
            }
        }